1 1

Marani MIR 480A

Marani MIR 480A

MIR480A is a digital audio processor newly designed by Marani. It has extremely low noise floor, high dynamic range and powerful internal DSP to cover most of the usage scenarios. Whether in meeting rooms , theaters , touring performances, or even large-scale tours, you can use the A series processors. Advanced circuit design and original DSP algorithm are the core of pure and high-quality sound.
In the signal processing part of MIR480A, inside powerful MARANI DSP, DSP and AD/DA converters are running at 96KHz sampling rate, complete processing functions provide a complete speaker crossover solution.
From input gain/delay/noise gate/EQ/compression/FIR ，tooutputgain/delay/polarity/frequency division/FIR/EQ/compression/compression, there are up to 16 types of parametric equalizer (PEQ) The filter type can be selected. The output crossover filter has the classic Linkwitz-Riley /Bessel/Butterworth, and there are also NXF horntype filters and FIR filters with a slope of up to 120dB per octave. The newly added MIR linear phase frequency divider filter can make the phase of the crossover point easier to join and produce a lower delay. Everything we provide is for better sound.
Added DSP plug-in, providing 96kHz FIR filter/highorder signal generator/RTA real-time spectrum analyzer, etc.
The newly designed Hard Limiter (Hard Limiter) allows a constant rate limit on signals exceeding the threshold at any threshold to better protect the speaker unit.
Each input and output channel provides a maximum 512-tap FIR filter, which can be customized by third-partysoftwaretogeneratetheFIR convolution you need. It can be used for speaker presets to improve the phase response and control the directivity according to requirements.
The newly added MIR linear phase divider filter has the filter shape of the traditional IIR filter (Linkwitz-Riley 24+48/oct), but does not produce any phase shift, and the resulting delay is about 50% of the FIR filte

More Information

Technical Specification

Audio

input impedance                   10k Ohm balancedOutput impedance                   100R Impedance balancedA/D dynamic range                   118dBD/A dynamic range                   118dBMaximum input level                   +20dBuMaximum output level                   +18dBuTotal harmonic distortion                   ≦0.003%(+4dBu 1kHz)Frequency response                   20Hz~40kHzCrosstalk                   ≦-95dBSNR                   ≧113dB (A weighting)Noise floor                    ≦-94dBu (A weighting)Common Mode Rejection Ratio                   60dBNumber of analog input channels                   4Number of analog output channels                   8Rs485 control port                   2Network control port                   1DSP ProcessingSignal generatorwhite noise/pink noise, level range: -30dBu~+10dBuinput & output gain-18 dB ~ +12 dB, step  0.1dBNoise gateThreshold range: -80dBu~-45dBuAttack time: 1ms~1000msRelease time: 1ms~1000msDynamic loudness filter Gain range: 0dB-10dB Attack speed: fast/medium/slowParametric equalizerInput channels up to 31 optional types of PEQoutput channels up to 8 optional types of PEQOptional types include Bell filter, 1st order high Shelf filter, 2nd order high Shelf filter Variable Q high Shelf filter, 1st order low Shelf filter, 2nd order low Shelf filter Variable Q low Shelf filter, 1st-order low-pass filter, 2nd-order low-pass filter Variable Q low pass filter, 1st order high pass filter, 2nd order high pass filter Variable Q high pass filter, band pass filter, notch filter 1st order allpass filter, 2nd order all-pass filter with variable Q valueThe center frequencyadjustable within the frequency range of 20Hz~20kHz with a step accuracy of 1HzQ value/bandwidthThe Q value range of Bell filter is 0.4~128,the step is 0.01 The range of the Q value of the Chevron/high-pass/low-pass filter is: 0.1~5.1,and the step is 0.01 The value range of bandpass/notch filter Q is: 4~104, step is 1 Equalizer gain range-15dB～+15dBIIR crossover filterButterworth slope: 6/12/18/24/36/48dB per octaveBessel slope: 12/24dB per octaveLinkwitz-Riley slope: 12/24/36/48dB per octaveNXF horn filter slope is 40/45/50/50/55/60/65/70/75dB per octaveMIR linear phase filterLinkwitz-Riley: 24/48dB per octave,NXF-40per octaveFIR crossover filtertype; high pass/low pass/band pass/external importTaps range: 256 ~ 512,slope range 21 ~ 120dB per octaveTime window type: Rect / Sinc / Keiser /Hanning / Hamming / Blackman /Blackman-Harris/ Blackman-Nuttal / Nuttal/Keiser -Bessel/SineRMS compressorStarting threshold range: -10dBu~ +20dBuCompression ratio range: 2~32: 1Soft and hard knee: 0~100%Attack time:  0.1ms~15000msRelease time: 10ms~15000msGain compensation:Maximum 12dBPeak limiter Threshold range: -10dBu~ +20dBuAttack time:    1ms~1000msRelease time: 10ms~3000msHard limiterThreshold range: -10dBu~ +18dBuDelay                            The adjustable delay time of each input channel + output channel is 452ms,Step accuracy 0.0104ms (10.4us)FIR filterEach input channel and output channel can import FIR filter with 48kHz sampling rate and 512 tapsGeneralPreset32size482x44x207mm 1RUPackage size560x320x110(mm)Net/Gross weight3.0 Kg / 3.5 Kg

View full details